Test unit for volatilization and collection of oil



FIG. 1 is a perspective view of a test unit for volatilization and collection of oil, showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

A see-through, swinging shield encloses the inset work space.

The broken line showing is for illustrative purposes only and forms no part of the claimed design. 

The ornamental design for a test unit for volatilization and collection of oil, as shown and described. 